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KENNEDY & BROWN.

Coal-Breaker. I No. 23,922. Patented May 10; 1859.

" ail/aw 5 N4 VETERS. PlmwLillw m hcr. Wmhi UNITED STATES PAENT FFIQE.

CHAS. W. KENNEDY AND RIOHD. T. BROWN, OF \VILLIAMSBURG, NEIV YORK.

MACHINE FOR BREAKING COAL.

Specification of Letters Patent No. 23,922, dated May 10, 1859.

To all whom it may concern:

Be it known that we, CHARLES IV. KEN- NEDY and RICHARD T. BROWN, both ofI/Villiamsburg, in the county of Kings and State of New York, haveinvented a new and Improved Machine for Breaking Coal; and we do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the annexed drawings, making a part ofthis specification, in which Figure 1, is a side sectional view of ourinvention. Fig. 2, is a front view of ditto.

Similar letters of reference indicate corresponding parts in the twofigures.

To enable those skilled in the art to fully understand and construct ourinvention we will proceed to describe it.

A, represents a base or bedpiece on which two uprights B, B, are placed,one at each side, the upper ends of the uprights being connected by across plate C, and braced by inclined bars D, D, which extend from thebase to the uprights, as shown clearly in Fig. 1.

Between the two uprights B, B, a polygonal drum E, is placed and allowedto rotate freely. In Fig. 1, the drum is represented as being a hexagon.Each face is of cast metal provided with spikes a, of suitable length,and the plates are divided by radial flanches or plates 6, which serveas partitions and form a sort of box or recess for each plate, as shownmore particularly in Fig. 1. The sides or heads 0, of the drum alsoproject out beyond the faces of the drum extending outward even with theends of the plates or fianches I).

On one end of the shaft (Z, of the drum E, a wheel F, is placed. Thiswheel is at the outer side of the upright B, and it has holes 6 made inits periphery, one opposite the center of each face of the drum. To theinner side of the wheel. F, and in lines radial with the holes 6, pinsf, are attached. Through the lower parts of the uprights B, B, a shaftG, passes. This shaft is parallel with the shaft (Z of the drum E, andit has a crank g, on one end, and a fly wheel h, on the opposite end.The upper parts of the uprights B, B, are slotted vertically for acertain distance and the journals h, h, of a plate H, are fitted thereinand allowed to work freely up and down. The ends of the journals 71,, h,are connected by rods 2', to the crank g, and Wheel h, the

latter being a crank as well as a fly wheel. The plate H, is armed withspikes j, and they are so placed or disposed in the plate as to be inline with the centers of the spaces between the spikes a, of the drum E,when the faces of the latter are directly underneath the plate H.

The plate H, is perforated all around near its edges and the spikes k,of a plate I, fit therein. This plate I, is directly over plate H, andspiral springs Z, are placed around the corner spikes to sustain theplate I.

To the upright B, that is by the side of wheel F, a slide m, isattached, said slide being fitted in a proper guide a, and resting on arod 0, which has a spiral spring 0, placed on it. To the upper end ofslide m, a spring pawl p, is attached. To this same upright B, a slide9, is also attached and fitted in the same guide a. The upper end of theslide q, is connected to one end of a lever 1', which is attached to theupright B, said lever 7 having a pin .9, projecting down from itsopposite end. On the lever 1", a spring t, bears, said spring having atendency to keep the pin 8, in the holes 6 of the wheel F. To the lowerend of the slide m, a horizontal arm a, is attached, and a similar arm41, is attached to the lower end of the slide 9. On the shaft G, atappet w, is placed. J, is a hopper attached to the braces or bars D, D.

The operation is as follows z-Motion may be given the the shaft G, inany proper way, and as said shaft G, rotates, a reciprocating movementis given the plate I, by the crank g, and crank Wheel it, and connectingrods 2', 2', and an intermitting rotating movement is given the drum bymeans of the pawl 29, which catches on the pins f, of the wheel F, saidpawl being actuated by the tappet w. The wheel F, is released from theretaining pin 8, just previous to the downward move ment of the pawl 79,by the movement of the slide 9, which is also actuated by the tappet w.The relative movement of the drum E, and plate I, is such, that the drumE, stops as each face reaches a horizontal plane directly in line withthe plate H, the latter then descending and breaking the coal whichpasses on the faces or sides of the drum from the hopper J. As the plateH, ascends and reaches the termination of its upward movement the plateI, is arrested by the cross plate O, and the spikes 70, pass downthroughthe plate H, and clear it from all fragments of coal that might havebecome wedged between the spikes j. The broken coal falls from the drumas the latter rotates.

This invention has been practically tested and operates well, andrapidly. The coal is broken with but little waste, that is to say, butcomparatively little dust is formed and the machine may be constructedat a moderate cost.

\Ve are aware that spiked endless chains or aprons have been used inconnection with spiked hammers for breaking coal, but these devices havebeen found liable to get'out of repair. They lacked solidity, and wereexpensive to construct.

Ve do not claim broadly the breaking of coal by means of spikedsurfaces, one or both being brought in contact or toward each other soas to act on the coal; but,

lVe do claim as new and desireto secure ,by Letters Patent,

